Read the given two statements and select the correct option.
Statement-I: At constant volume, pressure of a fixed amount of gas varies directly with the temperature.
Statement-II: Each line of pressure vs temperature (Kelvin) graph at constant molar volume is called isochore.
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A.
Both Statement-I and Statement-II are false.
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B.
Statement-I is true but Statement-II is false.
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C.
Statement-I is false but Statement-II is true.
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D.
Both Statement-I and Statement-II are true. Section : Technical Abilities
Correct Answer:
D. Both Statement-I and Statement-II are true. Section : Technical Abilities
Explanation:
The provided statements describe fundamental concepts in thermodynamics. Statement-I refers to Amontons's Law (or Gay-Lussac's Law), which states that the pressure of a given mass of gas is directly proportional to its absolute temperature when the volume is kept constant. Statement-II defines an isochore as the line on a graph representing the relationship between pressure and temperature for a gas at a constant molar volume. Since both the physical law and the graphical definition are scientifically accurate, the correct option is that both Statement-I and Statement-II are true.
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